Table T5 (continued).
Leg, hole:
176-735B-
118-735B-
176-735B- 118-735B-
176-735B-
Core, section: Interval (cm):
145R-5
49-53
190R-6
42-48
149R-4
82-87
149R-4
82-87
54R-4
0-9
162R-6
29-36
119R-5
62-68
157R-7
1-5
118R-1
135-140
41R-4
68-70
20R-2
13-21
118R-4
50-55
Rock type: Gabbro Oxide gabbro
Major element oxide (wt%):                    
SiO2 36.38 37.31 37.08 36.96 36.98 37.69 37.29 36.43 36.82 36.35 35.28 35.42
TiO2 0.00 0.00 0.02 0.00 0.00 0.01 0.00 0.00 0.04 0.00 0.02 0.00
Al2O3 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.12 0.00
FeO 32.88 25.89 27.02 28.39 26.34 26.83 27.76 30.24 31.64 35.08 35.78 37.32
NiO 0.00 0.08 0.00 0.10 0.00 0.00 0.09 0.12 0.06 0.03 0.03 0.00
MnO 0.63 0.38 0.51 0.47 0.59 0.33 0.30 0.51 0.46 0.55 0.53 0.71
MgO 30.35 36.69 35.62 34.83 36.18 35.35 34.35 32.18 31.35 29.40 27.46 26.11
CaO 0.10 0.07 0.05 0.02 0.00 0.11 0.33 0.00 0.06 0.06 0.04 0.00
Total 100.35 100.42 100.32 100.77 100.09 100.32 100.12 99.48 100.45 101.47 99.26 99.56
Number of cations based on 4 O:                  
Si 0.9956 0.9856 0.9859 0.9850 0.9834 0.9989 0.9966 0.9936 0.9991 0.9930 0.9926 1.0008
Ti 0.0000 0.0000 0.0004 0.0000 0.0000 0.0002 0.0000 0.0000 0.0009 0.0000 0.0004 0.0000
Al 0.0000 0.0000 0.0011 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0040 0.0000
Fe+2 0.7526 0.5719 0.6008 0.6328 0.5857 0.5946 0.6203 0.6898 0.7180 0.8014 0.8417 0.8818
Ni 0.0000 0.0017 0.0000 0.0022 0.0000 0.0000 0.0018 0.0027 0.0014 0.0007 0.0007 0.0000
Mn 0.0147 0.0084 0.0114 0.0107 0.0133 0.0073 0.0068 0.0118 0.0106 0.0127 0.0126 0.0169
Mg 1.2384 1.4447 1.4121 1.3839 1.4343 1.3967 1.3685 1.3086 1.2681 1.1974 1.1518 1.0998
Ca 0.0031 0.0020 0.0014 0.0005 0.0000 0.0032 0.0093 0.0000 0.0017 0.0018 0.0012 0.0000
Total 3.0044 3.0144 3.0120 3.0150 3.0166 3.0009 3.0034 3.0064 2.9999 3.0070 3.0010 2.9992
Fo 62.2 71.6 70.2 68.6 71.0 70.1 68.8 65.5 63.8 59.9 57.8 55.5
Fa 37.8 28.4 29.8 31.4 29.0 29.9 31.2 34.5 36.2 40.1 42.2 44.5